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Old 12-05-2016, 08:13 AM   #1
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Fridge Beep - RMD8555

Those of you who've followed our first trip back in March of 2015 might remember the issue we had with the fridge beeping an alarm that indicates the door isn't closed. We eventually solved the problem (or Reace did) by swapping out the fridge light assembly.

Well, this morning at 2:30 am, it happened again. Fridge Beep, says door isn't closed, when it is. At least this time I knew the fix to silence the beep. Pulled the light cover, unplugged the light, silence. Back to sleep.

No fridge light now of course. I'm thinking these RMD8555s must have a frequent issue with faulty light switch assemblies, since it's now happened to us twice.
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Old 12-05-2016, 09:05 AM   #2
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Thanks for the heads-up, Robert! 2:30 am? UGH!
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Old 12-05-2016, 09:46 AM   #3
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That light is one more unnecessary power drain on a boon docking set up (IMHO). When/if ours malfunctions, it will be disconnected, permanently. It doesn't give much light anyway - its major function seems to be to trigger the door open alarm.
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Old 12-05-2016, 05:19 PM   #4
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Quote:
Originally Posted by Mary F View Post
That light is one more unnecessary power drain on a boon docking set up (IMHO). When/if ours malfunctions, it will be disconnected, permanently. It doesn't give much light anyway - its major function seems to be to trigger the door open alarm.
I'm thinking so, Mary. I do like the blue light though. The light switch sends a signal to the board when the door isn't fully shut and the light is still on. If that fails, it tells the fridge the light is on (and therefore the door isn't shut) even when the light is off and the door is fully closed. I'm going to look into the cost of a new light switch assembly. If it's cost prohibitive, I'll just go with a battery operated interior light that can mount on the interior with a suction cup or the like.
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Old 12-05-2016, 05:42 PM   #5
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Ok, the plot thickens. I think I found the cause of this problem. Came across a thread in a bulletin board with alot of refrigerator technicians discussing the alarm. There was mention of it being an ongoing problem when the fridge is operated in very high humidity. Sure enough, we were operating the fridge last night right on the Gulf coast, where the humidity was near 100 percent and it was raining. You can see the condensation inside the light assembly in the photos. When we had this issue back in March of 2015, we were in the Cascade mountains where there was a lot of rain and fog, humidity near 100 percent also. I'm betting the condensation messes with the circuit. Fix might be to add a bit of silicone to the terminal to prevent any water disrupting the circuit.

Bottom line is that this happened, in both cases, where the humidity was extraordinary high.
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Old 12-05-2016, 05:43 PM   #6
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Robert, don't know if it will work for you, but when I had that problem (first night in trailer) I manipulated the door's latching mechanism with my finger several times and it corrected the problem. I also gave it a slight shot (spray) of silicon. The mechanism, that is. Hasn't gone off again.
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Old 12-05-2016, 05:47 PM   #7
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Robert, don't know if it will work for you, but when I had that problem (first night in trailer) I manipulated the door's latching mechanism with my finger several times and it corrected the problem. I also gave it a slight shot (spray) of silicon. The mechanism, that is. Hasn't gone off again.
Yeah, we played with the latch and lots of other things when it happened the first time Carl. In the case of a sticky latch, I'm thinking your silicone spray is what actually fixed it. In our case though, the latch is closed, but the system senses it isn't. I think the condensation is the cause.
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Old 12-05-2016, 09:55 PM   #8
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Fridge Beep - RMD8555

Quote:
Originally Posted by Mary F View Post
That light is one more unnecessary power drain on a boon docking set up (IMHO). When/if ours malfunctions, it will be disconnected, permanently. It doesn't give much light anyway - its major function seems to be to trigger the door open alarm.

IMO LED lights use so little power that they don't concern me - even when boondocking. I don't leave them on when not needed, but I use them freely anytime I want light.

The power used by an LED fridge light that's only on when the fridge door is open is negligible. My solar panel should be able to generate enough power for that in a couple minutes (my guess).

If I didn't like the fridge light, I might disable it, but not just to save power. YMMV

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Old 01-08-2017, 02:57 AM   #9
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We have just taken delivery of our first motorhome (in New Zealand) and it has a Dometic RMD 8555 fridge. It was working fine, however I have tried to turn it off with no success. Currently the vehicle is not connected to mains, we do have solar power, gas and battery. The gas is turned off and I have put the fridge onto mains operation (manually). I then slid the door catches to allow ventilation and pushed the on/off button for 3 seconds to turn the unit off.

It turns off momentarily, then lights back up and tries to start up again. The blue led light goes on and stays on. Does this mean the fridge is on? Is there any way to get all the lights and everything to go off?
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Old 01-08-2017, 04:07 AM   #10
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I have had this happen several times. I just keep trying. I am supposing that you are not usually pushing the button for even a second most tries? I would try to push it a little longer. Also I would try to push the button in a slightly different spot. It could be that it is not quite getting pushed exactly where need be. I have managed to get ours off but sometimes with many tries.

I also wonder if the weather could have anything to do with it. Think I was in hot weather when I first had the problem.
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